Transmission in motor-vehicles.



H. MAYER.

TRANSMISSION IN MOTOR VEHICLES. APPLICATION FILED YEB.11,1913.

1 72,389, Patented Sept. 2, 1913.

2 SHEETS-SHEET 1.

J a; and, v 'hnviQnjk H. MAYER.

TRANSMISSION IN MOTOR VEHICLES.

APPLICATION FILED IEB.11,1913.

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HEINRICH MAYER, 0F ARBON, SWITZERLAND.

TRANSMISSION IN MOTOR-VEHICLES.

Specification of Letters Patent.

Patented Sept. 2, 1913.

'To all whom it may concern:

Be it known'that 1, Hammer: Marian, a citizen of the Republic of Switzerland, residing at Arbon, in, Switzerland, have invented a new and useful Transmission in Motor-Vehicles, of which the following is a specification.

In motor-vehicles, such as automobiles, outotrucks, and the like, it is often desirable to temporarily transmit power from an intermediate part of the power shaft by means of belting to some device or apparatus be side the stopping motor-vehicle. In case the intermediate part of the power shaft is disposed behind the gearing-box and is coupled with the respective shaft in the gearingbox by means of a universal joint for the purpose of being able to follow any winding or torsion of the carriage-frame, in general the disposition of an ordinary belt pulley on this intermediate shaft would present great difficulties as the belt might not keep rum ing regularly, but slide off.

My invention relates to a novel transmis sion for such motor-vehicles, whereby the belt is enabled to run regularly in any case.

The novel transmission conslsts of a tubular shaft surrounding the said intermediate shaft and coupled at one end with the member of the unlversal joint on the shaft projecting from the gearing-box. and mounted to turn with the other end in a suitable bearing, preferably a ball-bearing, connected with the carriage frame, the said tubular shaft carrying the belt-pulley. Where so preferred, this tubular shaft may be made in one with the belt-pulley.

I will now proceed to describe my invention with reference to the accompanying drawing, in which- Figure l is a plan view of a part of the carriage-frame of any motor-vehiele, which is provided with the novel transmission, the device or apparatus beside the vehicle being assumed to be a dynamo, which is turned through an angle of 90 for the purpose of giving an idea of the whole arrangement, and Fig. 2 is a vertical longitudinal section on an enlarged scale through the novel transmission.

Similar characters of reference refer to similar parts in both views.

Fig. 1 shows a part of the carriage frame of any known motor-vehicle, which frame is assumed to consist of two longitudinal side bars 1, 1 and several cross bars, of

which two are denoted by 2 and 3. A gearing-box 4: is partly shown, which is sup ported by the frame 1, 2, 3 in any known manner and comprises a projecting shaft 5 Fig. 2), which is driven from the motor not shown) in any known manner and is connected with an internnsdiatc shaft 6 by means of a universal joint shown as consisting of a forked member 7 fast on the projecting shaft 5, a bolt 8 passing through the two arms 7, 7 of the filCIl'lbOl 7 and having a square head 9 and a square nut 10, a crosshcad 11 rocking on the bolt 8 and having two opposite pins (not shown), and another forked member 12 fast on the shaft (3 and pivotal on the two pins of the cross head 11. I do not further describe the construction of the universal joint, as it is immaterial to my invention and may be varied. The intermediate shaft 6 is by the universal joint described enabled to follow any winding or torsion of the carriage frame while transmitting the power to the two rear wheels in any known manner.

According to my invention I provide a tubular shaft 13 surrounding the intermediate shaft 6 and having a widened right end 1 1, which engages over the two arms 7, 7 of the 11161111301 7 and has two opposite square notches 15, 15, into which the square head 9 of the bolt 8 and the square nut 10 can ongage. The left end portion 16 of the tubular shaft 13 is reduced in diameter and has a ring 17 forced on it serving as an inner race for two parallel circular rows of balls 18, 18. Itigidly connected with the cross bar 2 by means of bolts 26 or the like is :1 suitable casing 19, which contains a ring 20 forced into it serving as an outer race for the said balls 1%, 18. The casing 19 may be closed with a suitable cover 21 and it will be seen, that the parts 18, 18, I11), .20, 21 form a ball-hearing, in which the left end portion 16 of the tubular shaft 13 with the ring 17 is mounted to turn. I do not further describe this ball-hearing, as its construction is in1- material to my invention and may be varied. As the gearing-box 1 is rigidly connected with the carriage-frame 1, 2, 3, it will be evident, that the projecting shaft 5 keeps its position during the rotation and conse quently the right end 1-1- of the tubular shaft 1?, will run truly. Any belt-pulley 22 fastened on the tubular shaft 13 will therefore be lit for transmitting power from the shaft 5 to any device or apparatus. such as a dyand means connected with said. member of said universal joint for transmitting the box in said frame, a first shaft mounted in projecting therefrom, a second shaft mount ,Where soiprefe rred this device for ite o- .and removed as desired.

namo 23 standing beside the stoppingmoton; vehicle by means of an nndlesstbeltflnnd a pulley 25 on the armature shaft. The belt 24 will not run off, while the iiritermediaitei shaft 6 is at liberty to follow any windingor torsion of the carriage-frame. Wlhene so preferred,'the pulley 22 may be made in one, with the tubular shaft 13, as shown. The: novel transmission described maybe left on the -vehicle while it is traveling on "the road.

rarily transmitting power may be attac ed' The novel transmission may be varied in many respects without departing-from the spirit-of my invention. 1

(I claim:

1. In a motor-vehicle, a 'frarme,a gearing box in said frame, a 'fi'rstshaft mounted-m said gearing box to turn and having an 'end projecting therefrom, a second. shaft mounted at one end to turn insaid frame, a nniversal joint for. connecting fthe i oiiecting end ofsa-id first shaft with theot er end'of said second shaft and comprisin :a 'member fastened-on the end of the first shaft,

power by means -of belting tea-11y device or apparatus beside the stopping motor-vehicle.

2. In a mbtor-vehiclefa frame,-a -gearingsaid gearing-box to turn and having-an end;

ed at oneend to turn in said frame a-universal joint for connecting the pro jeeting end ofsaidfirst shaft with the other end of said second shafitramdioomprising a member fastened on the end of the first shaft, a bearing 7 40 iin amid theme, :a tubular shaft surrounding. said second shaft,,coupled at one end with said member of said. universal joint and lmounted to turn with" the other end in said 3. [En a mdtor-velfidle, a frame, a gearin' box in said frame, a first 'shaftrmounted 1n 5'0 said geai-ing-box to ttirn and having an end projecting therefrom, a second shaft moimted at one end to .turn in said frame, a amiversa'l joint for connectingthe projecting end "of said first shaft with the other end.

of said second shaffiwhii-le permitting the second shaft to follow any winding or tors'ion'of said frame, said universal comyn'ising -a member fastened :on the end offthe first shaft and having projections, bearing :in said frame, and-a .tubnla-r Jsha'ft surrmlrnd- 38o,

'mg said second sham-"haying atone 'end notdhes into whiichsaidprojectionswf said 4 universal joint engage and mounted to tum with the other end 'in'said bearing, said' tubular shaft being so shaped as to form a belt- -pn'l ley for transmitting the power to any device or apparatus beside the stopging motor-vehicle. I a A HEINRICH I Witnesses: I

@RANDA'IJL Ammon, EUGENE NABEL.

addring the---.0ommissioner ef'ka-tents, 

